#! /bin/sh
# Copyright (C) 2011-2023 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

# Sanity check for the automake testsuite.
# Check the 'seq_' subroutine.

. test-init.sh

plan_ 14

unset stderr_fileno_

check_work ()
{
  desc=$1 args=$2 exp=$3
  st=0; got=$(seq_ $args) || st=$?
  command_ok_ "$desc [exit status = 0]" test $st -eq 0
  command_ok_ "$desc [output]" test x"$exp" = x"$got"
}

check_work 'one-argument form' '5' "\
1
2
3
4
5"

check_work 'two-arguments form' '7 11' "\
7
8
9
10
11"

check_work 'three-arguments form (1)' '120 5 135' "\
120
125
130
135"

check_work 'three-arguments form (1)' '13 4 23' "\
13
17
21"

check_err ()
{
  desc=$1 args=$2 err=$3
  (seq_ $args) >output || st=$?
  # Protect content emitted on stdout/stderr, to avoid sending to the
  # TAP driver possible "Bail out!" directives generated by 'seq_'.
  # Use 'grep -c' below for the same reason.
  sed 's/^/: /' output
  command_ok_ "$desc [exit status = 99]" test $st -eq 99
  command_ok_ "$desc [error message]" grep -c "seq_: $err" output
}

check_err 'no argument is an error' '' 'missing argument'
check_err 'four arguments is an error' '1 1 2 1' 'too many arguments'
check_err 'six arguments is an error' '1 1 1 1 1 1' 'too many arguments'

:
